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Diffstat (limited to 'gdb/demangle.c')
| -rw-r--r-- | gdb/demangle.c | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/gdb/demangle.c b/gdb/demangle.c deleted file mode 100644 index 1fd69be..0000000 --- a/gdb/demangle.c +++ /dev/null @@ -1,208 +0,0 @@ -/* Basic C++ demangling support for GDB. - Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001 - Free Software Foundation, Inc. - Written by Fred Fish at Cygnus Support. - - This file is part of GDB. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - - -/* This file contains support code for C++ demangling that is common - to a styles of demangling, and GDB specific. */ - -#include "defs.h" -#include "command.h" -#include "gdbcmd.h" -#include "demangle.h" -#include "gdb_string.h" - -/* Select the default C++ demangling style to use. The default is "auto", - which allows gdb to attempt to pick an appropriate demangling style for - the executable it has loaded. It can be set to a specific style ("gnu", - "lucid", "arm", "hp", etc.) in which case gdb will never attempt to do auto - selection of the style unless you do an explicit "set demangle auto". - To select one of these as the default, set DEFAULT_DEMANGLING_STYLE in - the appropriate target configuration file. */ - -#ifndef DEFAULT_DEMANGLING_STYLE -#define DEFAULT_DEMANGLING_STYLE AUTO_DEMANGLING_STYLE_STRING -#endif - -extern void _initialize_demangler (void); - -/* String name for the current demangling style. Set by the - "set demangle-style" command, printed as part of the output by the - "show demangle-style" command. */ - -static char *current_demangling_style_string; - -/* The array of names of the known demanglyng styles. Generated by - _initialize_demangler from libiberty_demanglers[] array. */ - -static const char **demangling_style_names; - -static void set_demangling_command (char *, int, struct cmd_list_element *); - -/* Set current demangling style. Called by the "set demangle-style" - command after it has updated the current_demangling_style_string to - match what the user has entered. - - If the user has entered a string that matches a known demangling style - name in the demanglers[] array then just leave the string alone and update - the current_demangling_style enum value to match. - - If the user has entered a string that doesn't match, including an empty - string, then print a list of the currently known styles and restore - the current_demangling_style_string to match the current_demangling_style - enum value. - - Note: Assumes that current_demangling_style_string always points to - a malloc'd string, even if it is a null-string. */ - -static void -set_demangling_command (char *ignore, int from_tty, struct cmd_list_element *c) -{ - const struct demangler_engine *dem; - - /* First just try to match whatever style name the user supplied with - one of the known ones. Don't bother special casing for an empty - name, we just treat it as any other style name that doesn't match. - If we match, update the current demangling style enum. */ - - for (dem = libiberty_demanglers; - dem->demangling_style != unknown_demangling; - dem++) - { - if (STREQ (current_demangling_style_string, - dem->demangling_style_name)) - { - current_demangling_style = dem->demangling_style; - break; - } - } - - /* Check to see if we found a match. If not, gripe about any non-empty - style name and supply a list of valid ones. FIXME: This should - probably be done with some sort of completion and with help. */ - - if (dem->demangling_style == unknown_demangling) - { - if (*current_demangling_style_string != '\0') - { - printf_unfiltered ("Unknown demangling style `%s'.\n", - current_demangling_style_string); - } - printf_unfiltered ("The currently understood settings are:\n\n"); - for (dem = libiberty_demanglers; - dem->demangling_style != unknown_demangling; - dem++) - { - printf_unfiltered ("%-10s %s\n", dem->demangling_style_name, - dem->demangling_style_doc); - if (dem->demangling_style == current_demangling_style) - { - xfree (current_demangling_style_string); - current_demangling_style_string = - savestring (dem->demangling_style_name, - strlen (dem->demangling_style_name)); - } - } - if (current_demangling_style == unknown_demangling) - { - /* This can happen during initialization if gdb is compiled with - a DEMANGLING_STYLE value that is unknown, so pick the first - one as the default. */ - current_demangling_style = libiberty_demanglers[0].demangling_style; - current_demangling_style_string = - savestring ( - libiberty_demanglers[0].demangling_style_name, - strlen (libiberty_demanglers[0].demangling_style_name)); - warning ("`%s' style demangling chosen as the default.\n", - current_demangling_style_string); - } - } -} - -/* Fake a "set demangle-style" command. */ - -void -set_demangling_style (char *style) -{ - if (current_demangling_style_string != NULL) - { - xfree (current_demangling_style_string); - } - current_demangling_style_string = savestring (style, strlen (style)); - set_demangling_command ((char *) NULL, 0, (struct cmd_list_element *) NULL); -} - -/* In order to allow a single demangler executable to demangle strings - using various common values of CPLUS_MARKER, as well as any specific - one set at compile time, we maintain a string containing all the - commonly used ones, and check to see if the marker we are looking for - is in that string. CPLUS_MARKER is usually '$' on systems where the - assembler can deal with that. Where the assembler can't, it's usually - '.' (but on many systems '.' is used for other things). We put the - current defined CPLUS_MARKER first (which defaults to '$'), followed - by the next most common value, followed by an explicit '$' in case - the value of CPLUS_MARKER is not '$'. - - We could avoid this if we could just get g++ to tell us what the actual - cplus marker character is as part of the debug information, perhaps by - ensuring that it is the character that terminates the gcc<n>_compiled - marker symbol (FIXME). */ - -static char cplus_markers[] = -{CPLUS_MARKER, '.', '$', '\0'}; - -int -is_cplus_marker (int c) -{ - return c && strchr (cplus_markers, c) != NULL; -} - -void -_initialize_demangler (void) -{ - struct cmd_list_element *set, *show; - int i, ndems; - - /* Fill the demangling_style_names[] array. */ - for (ndems = 0; - libiberty_demanglers[ndems].demangling_style != unknown_demangling; - ndems++) - ; - demangling_style_names = xcalloc (ndems + 1, sizeof (char *)); - for (i = 0; - libiberty_demanglers[i].demangling_style != unknown_demangling; - i++) - demangling_style_names[i] = - xstrdup (libiberty_demanglers[i].demangling_style_name); - - set = add_set_enum_cmd ("demangle-style", class_support, - demangling_style_names, - (const char **) ¤t_demangling_style_string, - "Set the current C++ demangling style.\n\ -Use `set demangle-style' without arguments for a list of demangling styles.", - &setlist); - show = add_show_from_set (set, &showlist); - set_cmd_sfunc (set, set_demangling_command); - - /* Set the default demangling style chosen at compilation time. */ - set_demangling_style (DEFAULT_DEMANGLING_STYLE); - set_cplus_marker_for_demangling (CPLUS_MARKER); -} |